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/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2013 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef COMPAT_NSS_DBDEFS_H
#define COMPAT_NSS_DBDEFS_H
/*
* Bits of nss_dbdefs.h and nss_common.h needed to implement
* getgrouplist(3) using nss_search(3).
*
* HP-UX does not ship those headers so we need this compatibility header.
* It may also work on other systems that use a Solaris-derived nsswitch
* API.
*/
#ifdef NEED_HPUX_MUTEX
# include <synch.h>
#endif
typedef enum {
NSS_SUCCESS,
NSS_NOTFOUND,
NSS_UNAVAIL,
NSS_TRYAGAIN
} nss_status_t;
typedef struct nss_db_params {
const char *name;
const char *config_name;
const char *default_config;
unsigned int max_active_per_src;
unsigned int max_dormant_per_src;
int flags;
void *finders;
void *private;
void (*cleanup)(struct nss_db_params *);
} nss_db_params_t;
struct nss_groupsbymem {
const char *username;
gid_t *gid_array;
int maxgids;
int force_slow_way;
int (*str2ent)(const char *instr, int instr_len, void *ent, char *buffer, int buflen);
nss_status_t (*process_cstr)(const char *instr, int instr_len, struct nss_groupsbymem *);
int numgids;
};
typedef struct {
void *result; /* group struct to fill in. */
char *buffer; /* string buffer for above */
int buflen; /* string buffer size */
} nss_XbyY_buf_t;
struct nss_db_state;
typedef struct {
struct nss_db_state *s;
#ifdef NEED_HPUX_MUTEX
lwp_mutex_t lock;
#endif
} nss_db_root_t;
#ifdef NEED_HPUX_MUTEX
# define NSS_DB_ROOT_INIT { 0, LWP_MUTEX_INITIALIZER }
#else
# define NSS_DB_ROOT_INIT { 0 }
#endif
#define DEFINE_NSS_DB_ROOT(name) nss_db_root_t name = NSS_DB_ROOT_INIT
/* Backend function to find all groups a user belongs to for initgroups(). */
#define NSS_DBOP_GROUP_BYMEMBER 6
/* str2ent function return values */
#define NSS_STR_PARSE_SUCCESS 0
#define NSS_STR_PARSE_PARSE 1
#define NSS_STR_PARSE_ERANGE 2
/* Max length for an /etc/group file line. */
#define NSS_BUFLEN_GROUP 8192
/* HP-UX uses an extra underscore for these functions. */
#ifdef HAVE___NSS_INITF_GROUP
# define _nss_initf_group __nss_initf_group
#endif
#ifdef HAVE___NSS_XBYY_BUF_ALLOC
# define _nss_XbyY_buf_alloc __nss_XbyY_buf_alloc
# define _nss_XbyY_buf_free __nss_XbyY_buf_free
#endif
typedef void (*nss_db_initf_t)(nss_db_params_t *);
extern nss_status_t nss_search(nss_db_root_t *, nss_db_initf_t, int search_fnum, void *search_args);
extern nss_XbyY_buf_t *_nss_XbyY_buf_alloc(int struct_size, int buffer_size);
extern void _nss_XbyY_buf_free(nss_XbyY_buf_t *);
#endif /* COMPAT_NSS_DBDEFS_H */
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